webi Posted August 14, 2010 Share Posted August 14, 2010 hi i have a yamaha yb100 1988 and when i top up the oil it only lasts for about 5 gallons does this sound right to you? Link to comment Share on other sites More sharing options...
chris66 Posted August 14, 2010 Share Posted August 14, 2010 i take it you mean two stroke oil. one litre bottle at aprox 40/1 mix should last 40 litres about 8 gallons. if your using half litre bottle of oil then your about right if you mean you are compleatly filling the two stroke container then you are using much to much Link to comment Share on other sites More sharing options...
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